package m2;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

public class Consumer {
    public static void main(String[] args) throws IOException, TimeoutException {
        //连接
        ConnectionFactory f = new ConnectionFactory();
        f.setHost("192.168.64.140");
        f.setUsername("admin");
        f.setPassword("admin");
        Channel c = f.newConnection().createChannel();
        //创建队列 helloworld
        c.queueDeclare("task_queue", true,false,false,null);
        DeliverCallback deliverCallback = new DeliverCallback() {
            @Override
            public void handle(String consumerTag, Delivery message) throws IOException {
                String s = new String(message.getBody());
                System.out.println("收到:"+s);
                //模拟阻塞的消息
                //遍历字符串'.',每找到一个都暂停一秒
                for (int i = 0; i < s.length(); i++) {
                    if('.' == s.charAt(i)){
                        try {
                            Thread.sleep(1000);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }
                //发送回执
                //c.basicAck(回执,是否把之前收过的多条消息一起进行确认);
                c.basicAck(message.getEnvelope().getDeliveryTag(), false);
                System.out.println("-----消息处理结束\n");
            }
        };
        CancelCallback cancelCallback = new CancelCallback() {
            @Override
            public void handle(String consumerTag) throws IOException {

            }
        };
        //每次只接收一条消息,处理完之前不接收下一条
        c.basicQos(1);
        //创建回调对象
        c.basicConsume("task_queue", false, deliverCallback, cancelCallback);
    }
}
